INSTRUCTION MANUAL COMMUNICATIONS RECEIVER iR20 This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIO TELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND FEDERAL LAW. FOREWORD Thank you for purchasing this Icom product. The IC-R20 COMMUNICATIONS RECEIVER is designed and built with Icom's superior technology and craftsmanship. With proper care, this product should provide you with years of trouble-free operation. We want to take a couple of moments of your time to thank you for making your IC-R20 your radio of choice, and hope you agree with Icom's philosophy of "technology first." Many hours of research and development went into the design of your IC-R20. IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the receiver. SAVE THIS INSTRUCTION MANUAL-- This instruction manual contains important operating instructions for the IC-R20. EXPLICIT DEFINITIONS DEFINITION Personal injury, fire hazard or electric shock R WARNING! may occur. CAUTION NOTE Equipment damage may occur. Recommended for optimum use. No risk of personal injury, fire or electric shock. WORD D FEATURES Covers 0.150­3304.999 MHz* wide frequency range *Some frequency bands are inhibited according to version External power supply operation 1250 memory channels* with 26 banks available *200 auto write and 50 scan edge channels are included. Built-in bar-antenna Dualwatch operation i Versions of the IC-R20 which display the "CE" symbol on the serial number seal, comply with the essential requirements of the European Radio and Telecommunication Terminal Directive 1999/5/EC, and that any applicable Essential Test Suite measurements have been performed. Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries. PRECAUTION RWARNING! NEVER operate the receiver with an earphone, headphones or other audio accessories at high volume levels. Hearing experts advise against continuous high volume operation. If you experience a ringing in your ears, reduce the volume level or discontinue use. NEVER expose the receiver to rain, snow or any liquids. The receiver may be damaged. NEVER operate or touch the receiver with wet hands. This may result in an electric shock or damage the receiver. RWARNING! NEVER connect the receiver directly to an AC outlet. This may pose a fire hazard or result in an electric shock. NEVER solder the battery cell. This may damage the battery. AVOID using or placing the receiver in direct sunlight or in areas with temperatures below ­10°C (+14°F) or above +60°C (+140°F). RWARNING! NEVER operate the receiver while driving a vehicle. Safety driving requires your full attention--anything less may result in an accident. RWARNING! NEVER throw a battery cell or battery pack into a fire since as internal battery gas can cause an explosion. AVOID the use of chemical agents such as benzine or alcohol in cleaning, as they can damage the receiver's surfaces. Even when the receiver power is OFF, a slight current still flows in the circuits. Remove the battery pack or batteries from the receiver while not using it for a long time. Otherwise, the installed battery pack or batteries will become exhausted, and will need to be recharged. RWARNING! NEVER disassemble the battery pack. If the battery cell's internal material (electrolyte liquid) gets into your eyes, wash your eyes with water and obtain treatment from an eye doctor immediately. NEVER connect the receiver directly to a power source of more than 6 V DC. This will damage the receiver. RESPECT other people's privacy. Information overheard but not intended for you cannot lawfully be used in any way. For U.S.A. only NEVER connect the receiver to a power source using reverse polarity. This will damage the receiver. CAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. ii SUPPLIED ACCESSORIES q w e r OPERATING THEORY Electromagnetic radiation which has frequencies of 20,000 Hz (20 kHz*) and above is called radio frequency (RF) energy because it is useful in radio transmissions. The ICR20 receives RF energy from 0.150 MHz* to 3304.999 MHz and converts it into audio frequency (AF) energy which in turn actuates a loudspeaker to create sound waves. AF energy is in the range of 20 to 20,000 Hz. *kHz is an abbreviation of kilohertz or 1000 hertz, MHz is abbreviation of megahertz or 1,000,000 hertz, where hertz is a unit of frequency. t y OPERATING NOTES The IC-R20 may receive its own oscillated frequency, resulting in no reception or only noise reception, on some frequencies. q Antenna ...............................................................1 w Belt clip (MB-98) ................................................1 set e Battery spacer ......................................................1 r Hand strap .........................................................1 t Battery pack* (BP-206) ..........................................1 yAC adaptor*(BC-149A/D) .......................................1 (The shape of the BC-149A and BC-149D are different.) *Not supplied with some versions. The IC-R20 may receive interference from extremely strong signals on different frequencies or when using an external high-gain antenna. iii TABLE OF CONTENTS FOREWORD ................................................... i IMPORTANT ................................................... i EXPLICIT DEFINITIONS ................................ i PRECAUTION ................................................ ii SUPPLIED ACCESSORIES .......................... iii OPERATING THEORY .................................. iii OPERATING NOTES .................................... iii TABLE OF CONTENTS ................................ iv QUICK REFERENCE GUIDE ................. I­VIII Preparations ............................................ I Your first scanning experience .............. IV Memory programming ........................... VI Programmed scan operation................ VII 1 PANEL DESCRIPTION ......................... 1­7 Front, top and side panels ..................... 1 Function display ..................................... 6 2 BATTERY INSTALLATION/CHARGING ... 8­10 Battery installation .................................. 8 Caution ................................................... 9 Battery charging ..................................... 9 3 FREQUENCY AND CHANNEL SETTING .......................................................... 11­16 Mode selection...................................... 11 Operating band selection ..................... 12 Setting a tuning step............................. 14 Setting a frequency .............................. 14 Receive mode selection ....................... 16 Lock function ........................................ 16 4 BASIC OPERATION ......................... 17­23 Receiving.............................................. 17 Setting audio volume ............................ 17 Squelch level setting ............................ 18 Monitor function .................................... 18 Attenuator function ............................... 19 RF gain ................................................. 19 Duplex operation .................................. 20 AFC function......................................... 21 NB/ANL functions ................................. 21 Band scope .......................................... 22 [DIAL] function assignment .................. 23 DUALWATCH OPERATION ............. 24­25 Main band selection ............................. 24 Band exchange .................................... 24 Setting audio volume ............................ 25 Squelch level setting ............................ 25 MEMORY CHANNELS ...................... 26­33 General description .............................. 26 Memory channel programming............. 26 Memory bank setting ............................ 27 Memory bank selection ........................ 28 Programming memory/bank name ....... 29 Selecting memory/bank name indication..... 30 Copying memory contents.................... 31 Memory clearing ................................... 32 Erasing/transferring bank contents....... 33 SCAN OPERATION .......................... 34­41 Scan types............................................ 34 Full/band/programmed scan................. 35 Scan edges programming .................... 36 Memory/bank/all bank scan.................. 37 Auto-memory write scan....................... 38 Skip channel/frequency setting ............ 39 Scan resume condition ......................... 40 PRIORITY WATCH ........................... 42­44 Priority watch types .............................. 42 Priority watch operation ........................ 43 COMFORTABLE RECEIVING........... 45­48 Tone/DTCS squelch operation ............. 45 Tone squelch frequency/DTCS code setting........................................................ 46 DTCS polarity setting ........................... 47 Tone scan ............................................. 48 10 SET MODE ....................................... 49­59 General................................................. 49 Set mode items .................................... 50 11 OTHER FUNCTIONS ........................ 60­67 Antenna selection ................................. 60 Weather channel operation .................. 61 Data cloning ......................................... 62 Auto power-off function......................... 63 IC recorder ........................................... 64 Partial reset .......................................... 67 All reset ................................................ 68 12 CONTROL COMMAND .................... 68­69 General................................................. 68 Data format........................................... 68 Command table .................................... 68 13 FREQUENCY TABLE ....................... 70­77 TV channels ......................................... 70 VHF marine channels ........................... 73 Weather channels................................. 73 Other communications in the USA ....... 74 Other communications--other countries .... 76 14 MAINTENANCE ...................................... 78 Troubleshooting.................................... 78 15 SPECIFICATIONS .................................. 79 16 OPTIONS ................................................ 80 17 DRIVER INSTALLATION ........................ 81 18 POCKET GUIDE ..................................... 92 19 CE ........................................................... 94 5 6 7 8 9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 iv QUICK REFERENCE GUIDE Preparations D Batteries installation qRemove the battery cover from the receiver. D Battery pack installation q Remove the battery cover from the receiver. w Remove the supplied battery spacer for R6 (AA) size battery use. e Install the Li-Ion battery pack (BP-206). · Be sure to observe the correct direction. · Charge Li-Ion battery pack (BP-206) before use. (Refer to p. IV for charging instructions.) wFor alkaline battery use, attach the supplied battery spacer. w q e ·Battery pack installation ·Battery pack removal eInstall 3 R6 (AA) size alkaline batteries. · Be sure to observe the correct polarity. D Handstrap Slide the handstrap through the loop on the top of the rear panel as illustrated at below. Facilitates carrying. Keep the battery contacts clean to avoid rust or poor contact. It's a good idea to clean the battery terminals once a week. I QUICK REFERENCE GUIDE D Belt clip Conveniently attaches to your belt. Attach the belt clip with the supplied screws using a phillips screwdriver. w Clip the belt clip to your belt. D Swivel belt clip (Option) The optional swivel belt clip (MB-86) is useful for easy attaching/detaching the receiver to/from the belt. q Attach the stopper with the supplied screws using a phillips screwdriver. e Insert the receiver into the end of the clip as shown at right. · Once the receiver is locked in place, it will swivel 360 degrees. Quick reference guide II QUICK REFERENCE GUIDE D Antenna To remove: r Turn the receiver upside down, and then lift to release the receiver from the belt clip as shown at upper right. Insert the supplied antenna into the antenna connector and screw down the antenna as shown at right. NEVER hold the antenna when carrying the receiver. For your information Third-party antennas may increase receiver performance ...